I have recently purchased some kelford stage 2 cams. I also have other upgrades such and the mrev2 lower plenum on the way, full exhaust x-pipe custom built, lightened flywheel and race clutch, pop charger and plenum spacer.

My question is what else do I need to get the most out of my motor to go with the cams such as valve springs and where can I find the best price. Also what ecu flash or ecu replacement would you all recommend. Thanks for all input

 

Does your exhaust include a set of headers?
Because that would be the next logical upgrade.
As for tune, use the Osiris software

 

I have a set or nismo r tune headers I will be installing also just purchased an osiris tuner.

 

how high do you want to rev?

 

I would like to rev to at least 7500 on the stock bottom end safely. Also looking for any other suggestions to add power to my current set up till I go forced induction later this year or early next year

 

what duration/lift are these kelfords?

 

You need at least JWT valve springs and shims, but look for compatible kelford spring options. Not sure if they make them, so default goes to JWT.

 

Not likely to reliably happen on a non revup engine without at least doing rod bolts (nightmare of a job), a new oil pump and a different plenum

Kelford has a totally separate set of cams they offer for forced induction use

Not sure if I'd chance using that high a lift a cam or that high a duration with NISMO headers. They will want something longer and with a wider collector. Also may run into piston clearance issues.

There are no best springs. Springs come in different tensions and designs for different types of useage. The best ones are the lightest weight, least stiff ones that will deal with the lift your cams have. That determination really should be made by your engine builder, which is who I'd suggest asking before you purchase any other parts, as what you have already may not all work well together